Window-screen



(No Model.)

R0. HART. W N OW SCREEN. No. 254,965. Patented Mar.14,1882.

STATES PATENT Garrett HENRY c. HART, or. DETROIT, MICHIGAN.

WINDOW-SCREEN.

SPECIFICATION forming part of'Letters Patent No. 254,965, dated March 14, 1882,

Application filed December 5, 1881. (No model.)

To all whom it may concern 1 Be it. known that I, HENRY O. HART, a citizen of the United States, residing at Detroit, in thecounty of Wayne and State of Michigan, have invented new and useful Improvescreen-frames, such as are commonly used for window and door screens; and it further relates to devices for retaining the window- ,screens in place and guiding them in their upand-down movement; the main object beingto form such brackets and frame guiding and retaining devices so that all parts requisite for the screen-frame can be packed closely together and shipped in nests, whereby an unskilled person can readily put the-same together to form the complete screen-fra me, and

at the same time readily adapt the frame to the size of a door or window, and also apply the completed frame so that it will be retained in place and be allowed to move up and down without altering the construction of awindowframe when the screen is applied to such.

In the drawings, Figure 1 illustrates the four bars of a screen-frame, three of which are detached, with a corner or bracket secured to each bar, the fourth bar being shown with its bracket fitted to one of the vertical bars, so as to illustrate the way in which a bar can be I 7 is a top view of the same.

In the drawings, the letter A refers to the brackets or corner-pieces for a screen-frame. The bracket or corner-piece, which is made of metal and cast in one piece, is composed of the face-plate B, adapted to rest against the outside of the frame, and the annular inwardly-projecting flange 0, adapted to fit the inner corner of the said frame. The face-plate is formed with the perforations b b for the screws that secure it to the two meeting-bars of the frame, and the angular flange is formed with the perforations c c for the screws which secure it to the said members of the screenframe, which are indicated by thelettcrs D and E, the former being the vertical and the latter the horizontal bars, to which the wire or other gauze will be secured after the several component parts of the frame have been fastened'together. The face-plate is made solid, with the exception of its screw-holes, so-as to entirely conceal thejoint formed by the meeting-bars, audit is also made with the two outer straight edges, C 0 at right angles to each other, so as to conform to the outer corner of the frame. a

As it is not always convenient to employ a skilled workman for fitting screen-frames to windows, the framebars, with the bracketpieces and screw, are packed up and sold in sets, as illustrated in Fig. 4, in which four bars,with corner-brackets attached, are shown packed together, the bars being represented as broken away at the middle. In forming a set of bars for a screen-frame the bars will be of different lengths,one pairbeing longer than the remaining pair. A'corner-bracket will be attached to one end of each bar, and the bars will then be packed closely together, as shown in Fig. 4, so as to form atlat rectangular package. The compactness and shape of the burn die or package thus formed is due both to the different lengths of the bars and to the formation of the flange O and its face-plate, which constitutes an important feature of the invenwhen the bars are packed together, as in Fig. 4, it will be seen that where two bracketscome' together a portion of the face-plate of one bracket will lap the outer side of a portion of the face-plate of the other bracket, the bar E the bracket-flange, which short part of the flange is equal in length to thediameter ofthe bar.

From the above it will be readily understood that the bars and brackets can be put up in'compact form, and that a number of sets of four bars each can be included in one package. Although the two portions of the bracketflange are not of the same length, yet it will be seen that the face-plate will have substantially the same area of bearing-surface upon the sides of the meeting-bars-as, for example, in Fig. 2, the extent of face-plate from the lower edge of the short part c of the flange to the top edge, 0 of the face-plate will be substantially equal to the length of the face-plate from the corner of the angular flange to the ,outer end, 0, of the longer part c of said flange.

In order to adapt the frames to windows of different sizes, such adjustment of the size of frame can readily beet't'ected, as follows: If, for example, the vertical baris too long, the person fitting the frame to the window can apply to said bar the corner-bracket, fitted to a horizontal bar, and then by moving up the lower'bar and the bracket the latter will slide along the vertical bar until the straight edge O of the face-plate will arrive at the point where the bar is to be out off.

In Fig. l of the drawings the above operation is illustrated by leaving a portion of the vertical bar below the bracket and indicating by dotted line 3 y the line at which the bar is to be sawed off. The sides of the face portion of the bracket-piece and the faces of the angular flange, which fit against theinner corner of the frame-bars, are left perfectly plain, so that the bracket pieces and bars can be closely packed in nests for transportation.

In order to provide means for allowing these screen-frames to be readily raised or lowered, and also for retaining the same within the window-frame without altering the construction of the latter, I form a longitudinal groove, I in the outer side of each vertical bar, and provide the required number-say four for each i'rameof guide-screws G, which will be fastened in the window-frame or the sash-strip, which retains the sash in place, said screws being arranged so that their heads will be re- 1 ceived inthe grooves of the side bars of the ing 05 of paint.

A notch, is formed in the screw-head to receive the screw-driver, and these screws can be put up and sold in packages with the corner-bracket pieces and the screen-frame bars.

About two on a side of these screws willanswer, although the number is not necessarily limited.

In order to provide simple and eficient means for guiding the grooved vertical. bars ontothe head of the screw, should. said/bars become warped or sprung out of a straight line, I bevel the lower ends of the grooves in the said bars to form inclines, which extend in a lateral direction away from the said grooves, and serve to guide the grooved bars onto the headed screws.

Having thus described my invention, what I claim is- 1. The herein-described cast-metal bracket or corner-piece for a screen-frame, consisting of a solid face-plate, B, adapted to conceal the frame-joint, with the angular flange 0, having a plane outer surface, and formed with a long side, 0, and a short side, 0 both arranged and adapted in length with relation to each other and to the face-plate so that the distance between the corner of the flange and the outer end of its long side is equal, or nearly so, to the distance between the outer end of the short 0 side of the flange and the outer edge, 0 ot' the faceplate, whereby the frame-bars, with these brackets attached, can be closely packed together, as specified.

2. The screw,in combination with thegrooved 5 side of a screen-frame, said screw being formed with a notched head made oblong in cross-section, and having a flange at its junction with the screw-threaded shank, substantially as described.

v 3. The combination,in a screen-frame, of the four bars in pairs of difl'erent length with the herein-described cast-metal brackets or cornerpieces, one attached to each bar, and each of said brackets consisting of a face-plate, B, 105

with the angular flange 0, having a plane outer IIS HENRY U. HART. Witnesses:

R0131. A. LIGGETT, WALTER S. HARSHA. 

